Lighting device



FIG. 1 is a perspective view of a lighting device taken from the front, right side and top thereof, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines illustrating portions of the lighting device are included to show environmental structures and form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 